Home / 3,072.18-4,231.71-2,407.86

Finding the Fourth Proportional to 3,072.18, 4,231.71 and 2,407.86

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Solution

The fourth proportional to 3,072.18, 4,231.71 and 2,407.86 is: 3,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.18 : 4,231.71 = 2,407.86 : x
  2. Step 2: Convert to fraction form
    3,072.18/4,231.71 = 2,407.86/x
  3. Step 3: Cross multiply
    3,072.18x = 4,231.71 × 2,407.86
  4. Step 4: Simplify right side
    3,072.18x = 10,189,365.24
  5. Step 5: Solve for x
    x = 10,189,365.24/3,072.18
  6. Step 6: Final answer
    x = 3,316.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.